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UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , DC 20549 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Delaware ( State or other jurisdiction of incorporation or organization ) 5000 Executive Parkway , Suite 520 San Ramon , CA ( Address of principal executive offices ) FORM 10 - K Grid Dynamics Holdings , Inc. ( Exact Name of Registrant as Specified in its Charter ) Commission File Number : 001-38685 Title of each class Common Stock , par value $ 0.0001 per share Securities registered pursuant to Section 12 ( b ) of the Act : 94583 ( Zip Code ) Registrant's telephone number , including area code : ( 619 ) 736-6855 Large accelerated filer Non - accelerated filer □□ Trading Symbol ( s ) GDYN 83-0632724 ( I.R.S. Employer Identification No. ) Redeemable warrants , exercisable for shares of common stock at an exercise price of $ 11.50 per share Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes GDYNW Name of each exchange on which registered The NASDAQ Stock Market LLC The NASDAQ Stock Market LLC Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes > No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( § 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes > No Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company , " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . No | No Accelerated filer Smaller reporting company X X Emerging growth company If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No X The aggregate market value of the common stock held by non - affiliates of the registrant as of June 30 , 2020 ( the last business day of the registrant's most recently completed second fiscal quarter ) was approximately $ 187 million based on the closing price of the registrant's common stock on June 30 , 2020 of $ 6.90 per share , as reported by the NASDAQ Capital Market ( the " NASDAQ ” ) . Shares of the registrant's common stock held by each executive officer and director and by each other person who may be deemed to be an affiliate of the registrant have